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March 16, 2017 Journal: Name two ways that the cardiovascular system is related to the muscular system.

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Presentation on theme: "March 16, 2017 Journal: Name two ways that the cardiovascular system is related to the muscular system."— Presentation transcript:

1 March 16, 2017 Journal: Name two ways that the cardiovascular system is related to the muscular system.

2 Muscular System

3 Muscular System The movement of the body both externally and internally

4 Muscle All the contractile tissue in our bodies
Muscles contract, becoming short and thick, in response to a nerve impulse Muscles relax, becoming elongated, when the nerve impulse is removed

5 Muscle cells Elongated and resemble fibers in our clothing
Bundle together to form muscular tissues

6 What are the three types of muscles?

7 Skeletal Muscle Overview
Voluntary muscles (under conscious control) attached to the bones of the skeletal system Appear striated Control external movements such as walking or lifting weights

8 Smooth Muscle Overview
Involuntary muscles (not under conscious control) that do not have a striated appearance Found within organs, blood vessels, and airways so can also be called visceral muscle Allows for the internal movement of food Allows for the movement of blood and air by changing the diameter of the passageways

9 Cardiac Muscle Overview
Specialized muscle found only in the heart Involuntary muscle that is striated in appearance Makes up the walls of the heart and make it contract causing blood circulation

10 March 20, 2017 What are three muscles found in the leg?

11 How Skeletal Movement Happens

12 Contraction and Relaxation
Contraction: shortening of the muscle fibers Relaxation: lengthening or relaxing of the muscle fibers Movement occurs when certain muscles contract while others relax

13 Agonists Also known as primary movers
The muscle that causes the movement

14 Antagonists Muscles that move in the opposite direction of the primary mover

15 Point of Origin The end of the muscle that is attached to the bone that is stationary or not moving

16 Point of Insertion The end of the muscle that is attached to the moving bone

17 Synergistic Muscles Muscles that assist the primary mover

18 Name the agonist, point of origin, point of insertion, synergistic muscles, and antagonist for the following examples: Straightening your leg when sitting in a chair Flexing your toes back towards your body


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